area_level2

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full disclosure burden. It says 'List', implying a safe read, but discloses nothing about return shape, ordering, pagination, or whether an invalid area1_id errors or returns empty.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One front-loaded sentence with no wasted words, but its terseness is under-specification rather than economy — a clause on the ID source or return content would earn its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple one-parameter lookup, the description omits the essentials an agent needs: the meaning/source of area1_id and what the returned list contains (names, IDs, child counts). No output schema or annotations exist to fill these gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate for the single undocumented parameter. It never explains what area1_id is, where to obtain it, or whether it refers to an area_level1 identifier.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb ('List') and resource ('second level areas inside a first level area'), so the geographic-hierarchy intent is clear. It doesn't explicitly name the sibling area_level1 as the source of parent IDs, but the hierarchy wording implicitly distinguishes it.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no statement of when to use this versus area_level1 or the other lookup tools, and no prerequisite guidance (e.g., that area1_id must come from area_level1). Usage can only be inferred from the tool name and the hierarchy phrasing.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.